Nanasaku, who was forced to leave Japan two years ago, came back two years later as Nana Ryuzaki. Opposite 708, 707, are two NANAs with the same name. Quietly guarding two girls with the same name but very different personalities, as the fake Nana, she only wants a peaceful life and quietly watches her loved ones live happily from a distance. However, fate will not let her settle down so easily.